^○Shuichi Miyakawa (Toyota Chiiki Medical Center)

^○Shailesh Vinayak Shrikhande, Rajesh S. Shinde, Manish Bhandare, Vikram Chaudhari (GI and HPB Services, Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, India)

^○Seiko Hirono, Manabu Kawai, Ken-ichi Okada, Motoki Miyazawa, Yuji Kitahata, Ryohei Kobayashi, Shinya Hayami, Norihiko Suzaki, Masaki Ueno, Hiroki Yamaue (Second Department of Surgery, Wakayama Medical University)

^○Takao Ohtsuka, Yasuhisa Mori, Yoshihiro Miyasaka, Kohei Nakata, Masafumi Nakamura (Department of Surgery and Oncology, Kyushu University, Fukuoka, Japan)

^○Daishi Morimoto, Suguru Yamada, Yoshiyasu Kato, Katsuhito Tanaka, Nobutake Tanaka, Mitsuru Tashiro, Haruyoshi Tanaka, Masaya Suenaga, Hideki Takami, Masamichi Hayashi, Yukiko Niwa, Yasuhiro Kodera (Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan)

^○Toshimichi Asano, Satoshi Hirano, Toru Nakamura, Keisuke Okamura, Takahiro Tsuchikawa, Takehiro Noji, Yoshitsugu Nakanishi, Kimitaka Tanaka, Toshiaki Shichinohe (Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University)

^○Hiroki Ohya, Yasuhiro Yabushita, Junya Toyoda, Kota Sahara, Hiroki Matsuki, Kentaro Araki, Nobuhiro Tsuchiya, Takashi Murakami, Yu Sawada, Takafumi Kumamoto, Ryusei Matsuyama, Itaru Endo (Department of Gastroenterological Surgery, Yokohama City University, Kanagawa, Japan)